Lock box



FIG. 1 is an enlarged perspective view of a lock box showing my newdesign;

FIG. 2 is a top plan view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a bottom plan view thereof; and

FIG. 5 is a side elevational view thereof, both sides being the same.

The ornamental design for a lock box, as shown and described.